Posts Tagged by crown

White gold vs yellow gold: While pure gold is yellow in colour, coloured gold can be developed into various colours. These colours are generally obtained by alloying gold with other elements in various proportions. Coloured gold can be classified to three groups. They are, the Au-Ag-Cu system, producing white, yellow, green and red gold; typically malleable alloys, the intermetallic compounds, producing blue and purple gold, as well as other colours. These are typically brittle but can be used as gems […]